package tui

import (
	"fmt"

	tea "github.com/charmbracelet/bubbletea"
)

// NewTimerBoxModel creates a new timer box model
func NewTimerBoxModel() TimerBoxModel {
	return TimerBoxModel{}
}

// Update handles messages for the timer box
func (m TimerBoxModel) Update(msg tea.Msg) (TimerBoxModel, tea.Cmd) {
	return m, nil
}

// View renders the timer box
func (m TimerBoxModel) View(width, height int, isSelected bool) string {
	var content string
	
	if m.timerInfo.IsActive {
		content = m.renderActiveTimer()
	} else {
		content = m.renderInactiveTimer()  
	}
	
	// Apply box styling
	style := unselectedBoxStyle
	if isSelected {
		style = selectedBoxStyle
	}
	
	var title string
	if m.timerInfo.IsActive {
		title = "⏱ Active Timer"
	} else {
		title = "⚪ Timer (Inactive)"
	}
	
	return style.Width(width).Height(height).Render(
		fmt.Sprintf("%s\n\n%s", title, content),
	)
}

// renderActiveTimer renders the active timer display
func (m TimerBoxModel) renderActiveTimer() string {
	var content string
	
	// Timer duration
	timerLine := fmt.Sprintf("Duration: %s", FormatDuration(m.timerInfo.Duration))
	content += activeTimerStyle.Render(timerLine) + "\n\n"
	
	// Project/Client info
	if m.timerInfo.ProjectName != "" {
		projectLine := fmt.Sprintf("Project: %s / %s", m.timerInfo.ClientName, m.timerInfo.ProjectName)
		content += projectLine + "\n"
	} else {
		clientLine := fmt.Sprintf("Client: %s", m.timerInfo.ClientName)
		content += clientLine + "\n"
	}
	
	// Start time (convert from UTC to local)
	localStartTime := m.timerInfo.StartTime.Local()
	startLine := fmt.Sprintf("Started: %s", localStartTime.Format("3:04 PM"))
	content += startLine + "\n"
	
	// Description if available
	if m.timerInfo.Description != "" {
		content += "\n"
		descLine := fmt.Sprintf("Description: %s", m.timerInfo.Description)
		content += descLine + "\n"
	}
	
	// Billable rate if available
	if m.timerInfo.BillableRate != nil {
		rateLine := fmt.Sprintf("Rate: $%.2f/hr", *m.timerInfo.BillableRate)
		content += rateLine + "\n"
	}
	
	return content
}

// renderInactiveTimer renders the inactive timer display
func (m TimerBoxModel) renderInactiveTimer() string {
	var content string
	
	content += "No active timer\n\n"
	content += "Ready to start tracking time.\n"
	content += "Use 'i' to punch in or select\n"
	content += "a client/project from the left."
	
	return content
}

// UpdateTimerInfo updates the timer info
func (m TimerBoxModel) UpdateTimerInfo(timerInfo TimerInfo) TimerBoxModel {
	m.timerInfo = timerInfo
	return m
}